body {
    font-family: 'Arial', sans-serif;
    padding: 20px;
}

form {
    max-width: 400px;
    margin: 0 auto;
}

input {
    width: 100%;
    margin-bottom: 10px;
    padding: 8px;
    box-sizing: border-box;
}

input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}